Tire trimmer



rotated about its axis b Said TSt nentiOned Tneans 2. The con1bination of claim 1 including ad justable n1e2tns fo1' vaTying the relative 13atera1 Spacing`f the blades of said series- 3' The cornbination of claim 1 including biasing Ineans fo1' yieldably urging said blades against the surface of the til'e casing 4- The cOnbinati0n of olaim 1 including adjustable hinges for said blades Whereby their angle of presentation t0 the tire casing Inay be regulated, and loc{ing neanS fo1' Securing the blades in p0sitions of such angu1r adjust!nent.

5- In a machine for trimming mold over0W fron1 9 tire casing, the cornbination of Ineans for supporting and effecting continuous rOatiOn of a tire casing ab0u its axis, an Osoil1ting blade Support, having an axis of oscillation sub stantially tangent to a circle Whose center 1ies in the axis of rotation of said tire casing and whose periIneter defines the annular center line of the body of said casing, tin1ed 1T10tion feversing nleans for deternlining the extent of oscillation of said support, a plura1ity of arnls extend from said support and para1le1 With the a)(is there0f, a b1aade carried by each of said arns, said blades being presented t0 and latera11y spaced about the side wa11s and tread of said ti1-e, the lateral spacing of said blades being such that the 0Sci11altion of Saidsupport wm effect 1atera1 travel back and forth through over19p ping paths on the surface of the side vvalls and tread of said casing while said casing is being rotated bOut its axis by said rSt Inentioned Ineans.

6. The con1bination of o1ain1 5 in which Said a'1-Ins are adjustable as to arcuate spacing on said support.

7. T11e cornbination of clain1 5, in Which said arns are adjustable as to length to vary the spacing of said knives fronl said support 8. The combination of claim 5 in which said arn1s are adjustab1e as to 1ength and are further adjustable as to arcuate spacing one from an- 0ther 9. The con]bination of claim 1, wherein the said blades are of arcuate cr0SS-Section vvith the curvature in 0pposition to the cr0SS-Sectiona1 curvature of the tire casing.

GARY M. DINNAN.

''he f0110vving references are of Tecord in the file 0f this patent:

TJ1`TII'ED STATES PAT,ENTS

Nun1ber Name Date 2,034,662 1`claughlin et al. I`/Ia'r. 17 1936 2 l58 167 wikle l"l:ay 16, 1939 2,229,713 wikle Jan. 28, 191 2 52489 strong ()ct. 3 1950 

